Viscin threads are here described for the exine of Circaea ×intermedia Ehrh. (C. alpina L. × C. lutetiana L.). Often, the threads bifurcate, taper distally and have branched terminal ends. The smooth ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
A new research project, Plant Futures, envisions how a flower might respond to climate change over time. Flowers play a key role in most landscapes, from urban to rural areas. There might be ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback